/* roulang page: index */
:root{
    --ink:#0F1114;
    --ink-2:#1A1D21;
    --paper:#F7F6F2;
    --white:#FFFFFF;
    --lime:#C7F53C;
    --violet:#6C5CE7;
    --line:#E4E3DE;
    --line-dark:rgba(255,255,255,.14);
    --muted:#6B7075;
    --muted-dark:#A7ADB2;
    --danger:#D93A2B;
    --r-sm:8px;
    --r-md:12px;
    --r-lg:18px;
    --r-pill:999px;
    --ease:cubic-bezier(.22,.68,.28,1);
    --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.85;
    font-weight:400;
    color:var(--ink);
    background:var(--paper);
    overflow-x:hidden;
  }
  img{display:block;max-width:100%;height:auto;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  h1,h2,h3{letter-spacing:-.02em;}
  :focus-visible{outline:2px solid var(--lime);outline-offset:2px;box-shadow:0 0 0 2px rgba(199,245,60,.32);border-radius:4px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
  }
  @media(min-width:768px){ .container{padding:0 32px;} }
  @media(min-width:1440px){ .container{max-width:1280px;padding:0 48px;} }

  /* ---------- 顶部信息条 ---------- */
  .topbar{
    background:var(--ink);
    color:var(--muted-dark);
    font-size:13px;
    letter-spacing:.02em;
    height:36px;
  }
  .topbar-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:36px;
    gap:16px;
  }
  .topbar-left{display:flex;align-items:center;gap:12px;min-width:0;}
  .topbar-domain{
    font-weight:600;
    color:#DDE0E3;
    font-variant-numeric:tabular-nums;
  }
  .topbar-tip{
    position:relative;
    padding-left:13px;
    color:var(--muted-dark);
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .topbar-tip::before{
    content:"";
    position:absolute;
    left:0;top:50%;
    width:4px;height:4px;
    margin-top:-2px;
    border-radius:50%;
    background:var(--lime);
  }
  .topbar-right{display:flex;align-items:center;gap:6px;flex:0 0 auto;}
  .topbar-link{
    color:#DDE0E3;
    padding:2px 6px;
    border-radius:var(--r-sm);
    transition:color .18s var(--ease);
  }
  .topbar-link:hover{color:var(--lime);}
  .topbar-close{
    background:none;border:0;
    color:var(--muted-dark);
    font-size:17px;line-height:1;
    padding:2px 6px;
    border-radius:var(--r-sm);
    transition:color .18s var(--ease),background .18s var(--ease);
  }
  .topbar-close:hover{color:var(--lime);background:rgba(255,255,255,.06);}
  .topbar.is-hidden{display:none;}
  @media(max-width:640px){
    .topbar-tip{display:none;}
  }

  /* ---------- 主导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:70;
    background:rgba(247,246,242,.82);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:border-color .18s var(--ease),background .18s var(--ease);
  }
  .site-header.is-scrolled{
    border-bottom-color:var(--line);
    background:rgba(247,246,242,.95);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:68px;
  }
  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .logo-mark{
    width:30px;height:30px;
    border-radius:9px;
    background:var(--ink);
    display:grid;place-items:center;
    flex:0 0 auto;
  }
  .logo-mark::after{
    content:"";
    width:11px;height:11px;
    background:var(--lime);
    clip-path:polygon(0 0,100% 50%,0 100%);
    transform:translateX(1px);
  }
  .logo-text{display:flex;flex-direction:column;line-height:1.14;font-size:15px;}
  .logo-text b{font-weight:900;letter-spacing:-.02em;}
  .logo-text span{font-weight:500;font-size:11.5px;color:var(--muted);letter-spacing:.04em;}

  .main-nav{display:flex;align-items:center;gap:30px;}
  .nav-link{
    position:relative;
    font-size:15px;
    font-weight:500;
    color:#3B4046;
    padding:6px 0;
    transition:color .18s var(--ease);
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:-1px;
    height:2px;
    background:var(--lime);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .24s var(--ease);
  }
  .nav-link:hover{color:var(--ink);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--ink);font-weight:700;}
  .nav-link.is-active::after{transform:scaleX(1);}

  .header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
  .icon-btn{
    width:38px;height:38px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);
    background:var(--white);
    border-radius:var(--r-pill);
    color:var(--ink);
    transition:border-color .18s var(--ease),transform .18s var(--ease),background .18s var(--ease);
  }
  .icon-btn:hover{border-color:var(--lime);transform:translateY(-1px);}
  .icon-btn:active{transform:translateY(1px);}

  .hamburger{
    display:none;
    width:38px;height:38px;
    border:1px solid var(--line);
    background:var(--white);
    border-radius:var(--r-pill);
    align-items:center;justify-content:center;
    flex-direction:column;gap:4px;
  }
  .hamburger span{
    display:block;width:15px;height:2px;background:var(--ink);
    transition:transform .24s var(--ease),opacity .24s var(--ease);
  }
  .hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .hamburger[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  /* 移动抽屉 */
  .drawer{
    position:fixed;
    inset:0;
    z-index:90;
    background:var(--ink);
    color:#fff;
    display:flex;
    flex-direction:column;
    padding:26px 24px 32px;
    transform:translateY(-102%);
    visibility:hidden;
    transition:transform .32s var(--ease),visibility .32s var(--ease);
  }
  .drawer.open{transform:translateY(0);visibility:visible;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;}
  .drawer-close{
    background:none;border:1px solid var(--line-dark);
    color:#fff;width:36px;height:36px;border-radius:var(--r-pill);
    font-size:18px;line-height:1;
    transition:border-color .18s var(--ease),color .18s var(--ease);
  }
  .drawer-close:hover{border-color:var(--lime);color:var(--lime);}
  .drawer-nav{margin-top:34px;flex:1 1 auto;}
  .drawer-nav a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:56px;
    border-bottom:1px solid var(--line-dark);
    font-size:17px;
    font-weight:600;
    transition:color .18s var(--ease);
  }
  .drawer-nav a:hover,.drawer-nav a.is-active{color:var(--lime);}
  .drawer-foot{margin-top:24px;border-top:1px solid var(--line-dark);padding-top:20px;font-size:13px;color:var(--muted-dark);}
  .drawer-foot .btn{width:100%;margin-bottom:14px;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:14px 28px;
    border-radius:var(--r-pill);
    border:1px solid transparent;
    font-size:15px;
    font-weight:700;
    letter-spacing:.01em;
    white-space:nowrap;
    transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
  }
  .btn:active{transform:translateY(1px);}
  .btn-primary{background:var(--lime);color:var(--ink);}
  .btn-primary:hover{background:var(--ink);color:var(--lime);border-color:var(--lime);transform:translateY(-1px);}
  .btn-ghost{border-color:rgba(15,17,20,.28);color:var(--ink);background:transparent;}
  .btn-ghost:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-1px);}
  .btn-ink{background:var(--ink);color:var(--lime);}
  .btn-ink:hover{background:var(--white);color:var(--ink);transform:translateY(-1px);}
  .btn-sm{padding:9px 18px;font-size:14px;}

  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;
    color:var(--ink);
    transition:color .18s var(--ease);
  }
  .link-arrow span{display:inline-block;transition:transform .24s var(--ease);}
  .link-arrow:hover{color:var(--ink);text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:4px;}
  .link-arrow:hover span{transform:translateX(4px);}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    background:var(--ink);
    overflow:hidden;
    display:flex;
    align-items:center;
    min-height:86vh;
    padding:88px 0 64px;
  }
  .hero-bg{
    position:absolute;inset:0;
    background-size:cover;
    background-position:center;
    transform:scale(1.03);
  }
  .hero-overlay{
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(15,17,20,.84) 0%,rgba(15,17,20,.55) 52%,rgba(15,17,20,.88) 100%);
  }
  .hero-inner{position:relative;z-index:2;width:100%;}
  .hero-content{max-width:720px;}
  .hero-badge{
    display:inline-flex;align-items:center;
    height:28px;
    padding:0 14px;
    border:1px solid var(--lime);
    border-radius:var(--r-pill);
    color:var(--lime);
    font-size:12px;
    letter-spacing:.08em;
    margin-bottom:26px;
  }
  .hero-title{
    font-size:clamp(2.25rem,6.2vw,4.5rem);
    font-weight:900;
    letter-spacing:-.035em;
    line-height:1.04;
    color:#fff;
  }
  .hero-sub{
    margin-top:22px;
    font-size:17px;
    line-height:1.8;
    color:#C9CED3;
    max-width:560px;
  }
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}
  .hero .btn-ghost{border-color:rgba(255,255,255,.32);color:#fff;}
  .hero .btn-ghost:hover{background:var(--lime);border-color:var(--lime);color:var(--ink);}
  .hero-meta{
    display:flex;
    flex-wrap:wrap;
    margin-top:60px;
    padding-top:22px;
    border-top:1px solid var(--line-dark);
  }
  .hero-meta-item{flex:1 1 0;min-width:130px;padding-right:26px;}
  .hero-meta-item + .hero-meta-item{padding-left:26px;border-left:1px solid var(--line-dark);}
  .hero-meta-item b{
    display:block;
    font-size:clamp(1.4rem,3vw,2rem);
    font-weight:900;
    color:#fff;
    letter-spacing:-.02em;
    font-variant-numeric:tabular-nums;
    line-height:1.2;
  }
  .hero-meta-item span{font-size:13px;color:var(--muted-dark);letter-spacing:.02em;}

  /* ---------- 通用板块 ---------- */
  .section{padding:64px 0;}
  @media(min-width:768px){ .section{padding:96px 0;} }
  @media(min-width:1280px){ .section{padding:112px 0;} }
  .section-tight{padding:56px 0;}
  @media(min-width:768px){ .section-tight{padding:72px 0;} }
  .section-ink{background:var(--ink);color:#fff;}
  .section-ink .section-desc{color:var(--muted-dark);}

  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:44px;
  }
  .eyebrow{
    display:inline-block;
    font-size:12px;
    letter-spacing:.14em;
    color:var(--muted);
    text-transform:uppercase;
    margin-bottom:12px;
  }
  .section-ink .eyebrow{color:var(--lime);}
  .section-title{
    font-size:clamp(1.625rem,3.2vw,2.5rem);
    font-weight:800;
    letter-spacing:-.02em;
    line-height:1.22;
  }
  .section-desc{
    font-size:15px;
    color:var(--muted);
    max-width:420px;
    line-height:1.8;
  }

  /* ---------- 编号横条列表 ---------- */
  .numlist{border-top:1px solid var(--line);}
  .numlist li{
    display:flex;
    align-items:center;
    gap:30px;
    min-height:104px;
    padding:22px 18px 22px 6px;
    border-bottom:1px solid var(--line);
    transition:background .24s var(--ease);
  }
  .numlist li:hover{background:var(--white);}
  .num{
    font-size:clamp(1.75rem,4vw,3rem);
    font-weight:900;
    line-height:1;
    color:var(--ink);
    opacity:.16;
    font-variant-numeric:tabular-nums;
    letter-spacing:-.04em;
    min-width:78px;
    transition:color .24s var(--ease),opacity .24s var(--ease);
  }
  .numlist li:hover .num{color:#8FB01C;opacity:1;}
  .num-body{flex:1 1 auto;min-width:0;}
  .num-body h3{font-size:1.125rem;font-weight:700;margin-bottom:6px;}
  .num-body p{font-size:15px;color:var(--muted);line-height:1.8;}
  .num-arrow{
    flex:0 0 auto;
    font-size:20px;
    color:var(--muted);
    transition:transform .24s var(--ease),color .24s var(--ease);
  }
  .numlist li:hover .num-arrow{transform:translateX(4px);color:var(--ink);}

  /* ---------- 交错网格卡片 ---------- */
  .stagger-grid{display:grid;gap:24px;grid-template-columns:1fr;}
  @media(min-width:900px){
    .stagger-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
    .stagger-grid > *:nth-child(even){margin-top:44px;}
  }
  .card{
    display:flex;
    flex-direction:column;
    background:var(--white);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    overflow:hidden;
    transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .card:hover{
    transform:translateY(-3px);
    border-color:var(--lime);
    box-shadow:0 6px 0 -2px rgba(15,17,20,.08);
  }
  .card-cover{
    position:relative;
    aspect-ratio:16/9;
    overflow:hidden;
    background:var(--ink-2);
  }
  .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
  .card:hover .card-cover img{transform:scale(1.04);}
  .card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
  .badge{
    display:inline-flex;align-items:center;
    height:24px;padding:0 10px;
    font-size:12px;
    border-radius:var(--r-sm);
    border:1px solid transparent;
    white-space:nowrap;
  }
  .badge-violet{background:rgba(108,92,231,.1);border-color:rgba(108,92,231,.24);color:#4A3CC4;}
  .badge-lime{background:rgba(199,245,60,.28);border-color:rgba(154,190,44,.4);color:#4C5C12;}
  .badge-line{background:var(--paper);border-color:var(--line);color:var(--muted);}
  .card-title{font-size:1.125rem;font-weight:700;line-height:1.5;transition:box-shadow .18s var(--ease);}
  .card:hover .card-title{box-shadow:inset 0 -2px 0 var(--lime);}
  .card-excerpt{
    font-size:14.5px;
    color:var(--muted);
    line-height:1.8;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .card-foot{
    margin-top:auto;
    padding-top:14px;
    border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;
    font-size:13px;color:var(--muted);
    font-variant-numeric:tabular-nums;
  }

  /* ---------- 深色进度板块 ---------- */
  .steps-wrap{margin-top:20px;}
  .steps{display:flex;gap:0;}
  .step{flex:1 1 0;position:relative;padding-right:22px;min-width:0;}
  .step-track{position:relative;height:14px;display:flex;align-items:center;}
  .step-node{
    width:12px;height:12px;border-radius:50%;
    background:#33383D;
    position:relative;z-index:2;
    flex:0 0 auto;
  }
  .step-line{
    position:absolute;left:12px;right:0;top:50%;height:2px;margin-top:-1px;
    background:var(--line-dark);
  }
  .step.done .step-node{background:var(--lime);}
  .step.done .step-line{background:var(--lime);}
  .step.current .step-node{
    background:var(--ink);
    border:2px solid var(--lime);
    box-shadow:0 0 0 0 rgba(199,245,60,.55);
    animation:pulseNode 1.6s infinite;
  }
  @keyframes pulseNode{
    0%{box-shadow:0 0 0 0 rgba(199,245,60,.5);}
    70%{box-shadow:0 0 0 10px rgba(199,245,60,0);}
    100%{box-shadow:0 0 0 0 rgba(199,245,60,0);}
  }
  .step-title{margin-top:18px;font-size:15.5px;font-weight:700;color:#fff;}
  .step-desc{margin-top:6px;font-size:13.5px;color:var(--muted-dark);line-height:1.75;}
  .stats{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:24px;
    margin-top:56px;
    padding-top:32px;
    border-top:1px solid var(--line-dark);
  }
  @media(min-width:768px){ .stats{grid-template-columns:repeat(4,1fr);} }
  .stat b{
    display:block;
    font-size:clamp(1.75rem,4vw,2.75rem);
    font-weight:900;
    color:var(--lime);
    font-variant-numeric:tabular-nums;
    letter-spacing:-.03em;
    line-height:1.15;
  }
  .stat span{font-size:13px;color:var(--muted-dark);letter-spacing:.02em;}

  /* ---------- CTA 区 ---------- */
  .cta-band{background:var(--lime);color:var(--ink);}
  .cta-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:40px;
    flex-wrap:wrap;
  }
  .cta-copy{max-width:620px;}
  .cta-copy h2{
    font-size:clamp(1.5rem,3vw,2.25rem);
    font-weight:900;
    letter-spacing:-.025em;
    line-height:1.25;
  }
  .cta-copy p{margin-top:14px;font-size:15.5px;color:#33400C;line-height:1.8;}
  .cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
  .cta-actions .link-arrow{color:var(--ink);}
  .cta-actions .link-arrow:hover{color:#33400C;}

  /* ---------- 最新信息列表 ---------- */
  .feature-post{
    display:grid;
    grid-template-columns:1fr;
    background:var(--white);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    overflow:hidden;
    transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
  }
  .feature-post:hover{border-color:var(--lime);transform:translateY(-3px);box-shadow:0 6px 0 -2px rgba(15,17,20,.08);}
  @media(min-width:820px){
    .feature-post{grid-template-columns:40% 1fr;align-items:stretch;}
  }
  .feature-media{position:relative;background:var(--ink-2);min-height:220px;overflow:hidden;}
  .feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
  .feature-post:hover .feature-media img{transform:scale(1.04);}
  .feature-body{padding:26px;display:flex;flex-direction:column;gap:14px;}
  .feature-title{font-size:clamp(1.25rem,2.2vw,1.6rem);font-weight:800;line-height:1.4;}
  .feature-post:hover .feature-title{box-shadow:inset 0 -2px 0 var(--lime);}
  .feature-excerpt{
    font-size:15px;color:var(--muted);line-height:1.85;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .feature-meta{
    margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
    display:flex;align-items:center;gap:14px;flex-wrap:wrap;
    font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
  }

  .post-rows{margin-top:22px;border-top:1px solid var(--line);}
  .post-row{
    display:grid;
    grid-template-columns:96px 1fr auto;
    gap:22px;
    align-items:center;
    min-height:64px;
    padding:14px 12px;
    border-bottom:1px solid var(--line);
    transition:background .24s var(--ease);
  }
  .post-row:hover{background:var(--white);}
  .post-time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
  .post-title{font-size:17px;font-weight:600;line-height:1.55;}
  .post-row:hover .post-title{text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:4px;}
  .post-tail{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);}
  .post-arrow{transition:transform .24s var(--ease);}
  .post-row:hover .post-arrow{transform:translateX(4px);}

  .empty-state{
    border:1px dashed var(--line);
    border-radius:var(--r-lg);
    padding:48px 24px;
    text-align:center;
    background:var(--white);
  }
  .empty-state p{font-size:15px;color:var(--muted);margin-bottom:14px;}

  /* ---------- FAQ ---------- */
  .faq{max-width:860px;margin:0 auto;border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    width:100%;
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 4px;
    background:none;border:0;
    text-align:left;
    font-size:17px;font-weight:600;
    color:var(--ink);
    transition:color .18s var(--ease);
  }
  .faq-q:hover{color:#3B4046;}
  .faq-icon{
    position:relative;
    width:20px;height:20px;flex:0 0 auto;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--ink);
    transition:transform .24s var(--ease),background .24s var(--ease);
  }
  .faq-icon::before{left:0;top:9px;width:20px;height:2px;}
  .faq-icon::after{left:9px;top:0;width:2px;height:20px;}
  .faq-q[aria-expanded="true"] .faq-icon::before{background:var(--lime);}
  .faq-q[aria-expanded="true"] .faq-icon::after{transform:rotate(90deg);background:var(--lime);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .24s var(--ease);
  }
  .faq-a p{
    padding:0 4px 24px;
    font-size:15px;
    color:var(--muted);
    line-height:1.85;
  }

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:var(--muted-dark);margin-top:0;}
  .footer-top{padding:64px 0 40px;border-top:2px solid var(--lime);}
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:36px;
  }
  @media(min-width:768px){ .footer-grid{grid-template-columns:repeat(2,1fr);} }
  @media(min-width:1024px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;} }
  .footer-brand .logo-text b{color:#fff;}
  .footer-brand .logo-text span{color:var(--muted-dark);}
  .footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:var(--muted-dark);max-width:330px;}
  .footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
  .footer-col li{margin-bottom:10px;}
  .footer-col a{font-size:13.5px;color:var(--muted-dark);transition:color .18s var(--ease);}
  .footer-col a:hover{color:var(--lime);text-decoration:underline;text-underline-offset:3px;}
  .footer-col .plain{font-size:13.5px;color:var(--muted-dark);}
  .footer-bottom{
    border-top:1px solid var(--line-dark);
    padding:20px 0 28px;
    display:flex;
    flex-wrap:wrap;
    gap:12px 24px;
    align-items:center;
    justify-content:space-between;
    font-size:13px;
    color:var(--muted-dark);
  }
  .footer-bottom .dot{display:inline-block;margin:0 8px;opacity:.5;}

  /* ---------- 响应式细化 ---------- */
  @media(max-width:1023px){
    .main-nav{display:none;}
    .hamburger{display:inline-flex;}
    .header-actions .icon-btn,
    .header-actions .btn{display:none;}
  }
  @media(max-width:768px){
    .hero{min-height:auto;padding:64px 0 52px;}
    .hero-cta{flex-direction:column;align-items:stretch;}
    .hero-cta .btn{width:100%;}
    .hero-meta{margin-top:44px;}
    .hero-meta-item{flex:1 1 40%;padding-right:16px;min-width:0;}
    .hero-meta-item + .hero-meta-item{padding-left:16px;}
    .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
    .numlist li{gap:16px;min-height:auto;padding:20px 0;}
    .num{min-width:54px;font-size:1.75rem;}
    .num-arrow{font-size:17px;}
    .steps{flex-direction:column;gap:24px;}
    .step{padding-right:0;}
    .step-track{height:12px;}
    .step-line{left:12px;right:auto;width:calc(100% + 24px);}
    .step:last-child .step-line{display:none;}
    .step-title{margin-top:12px;}
    .cta-inner{flex-direction:column;align-items:flex-start;gap:26px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{width:100%;}
    .cta-actions .link-arrow{justify-content:flex-start;}
    .post-row{display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:18px 4px;}
    .post-time{font-size:12px;}
    .post-tail{padding-top:2px;}
    .feature-media{min-height:190px;}
  }
  @media(max-width:520px){
    .hero-meta-item{flex:1 1 100%;padding:0 0 14px;}
    .hero-meta-item + .hero-meta-item{padding-left:0;border-left:0;border-top:1px solid var(--line-dark);padding-top:14px;}
    .stats{grid-template-columns:1fr 1fr;}
  }

  @media(prefers-reduced-motion:reduce){
    *,*::before,*::after{
      animation-duration:.001ms !important;
      animation-iteration-count:1 !important;
      transition-duration:.001ms !important;
      scroll-behavior:auto !important;
    }
    .card:hover,.feature-post:hover,.btn:hover,.icon-btn:hover{transform:none !important;}
    .card:hover .card-cover img,.feature-post:hover .feature-media img{transform:none !important;}
    .stagger-grid > *:nth-child(even){margin-top:0 !important;}
  }

/* roulang page: article */
:root{
  --ink:#0F1114;
  --ink-2:#1A1D21;
  --paper:#F7F6F2;
  --white:#FFFFFF;
  --lime:#C7F53C;
  --violet:#6C5CE7;
  --line:#E4E3DE;
  --line-dark:rgba(255,255,255,.14);
  --muted:#6B7075;
  --muted-dark:#A7ADB2;
  --danger:#D93A2B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --ease:cubic-bezier(.22,.68,.28,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:#22262A;
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:16px}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;box-shadow:0 0 0 4px rgba(199,245,60,.28)}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1280px){.container{padding-left:48px;padding-right:48px;max-width:1280px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);color:var(--muted-dark);font-size:13px;height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar-domain{color:#fff;font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.topbar-tip{position:relative;padding-left:14px;color:var(--muted-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-tip::before{content:"";position:absolute;left:0;top:50%;width:1px;height:12px;margin-top:-6px;background:var(--line-dark)}
.topbar-right{display:flex;align-items:center;gap:12px;white-space:nowrap}
.topbar-link{color:var(--lime);font-weight:600;transition:opacity .18s var(--ease)}
.topbar-link:hover{opacity:.75}
.topbar-close{width:22px;height:22px;line-height:1;font-size:16px;color:var(--muted-dark);border-radius:var(--r-sm);transition:color .18s var(--ease),background .18s var(--ease)}
.topbar-close:hover{color:#fff;background:rgba(255,255,255,.1)}
.topbar.is-hidden{display:none}
@media (max-width:767px){.topbar-tip{display:none}}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(247,246,242,.96);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:none}
.logo-mark{width:30px;height:30px;border-radius:9px;background:var(--ink);position:relative;flex:none}
.logo-mark::after{content:"";position:absolute;left:8px;right:8px;top:8px;height:3px;border-radius:2px;background:var(--lime);box-shadow:0 6px 0 var(--lime),0 12px 0 rgba(199,245,60,.45)}
.logo-text{display:flex;flex-direction:column;line-height:1.08}
.logo-text b{font-size:15px;font-weight:900;letter-spacing:-.01em}
.logo-text span{font-size:11px;letter-spacing:.12em;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:#31353A;border-radius:var(--r-sm);transition:color .18s var(--ease),background .18s var(--ease)}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left center;transition:transform .24s var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--white);color:#31353A;transition:transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease)}
.icon-btn:hover{border-color:var(--lime);color:var(--ink);transform:translateY(-1px)}
.burger{display:none;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--white);flex-direction:column;align-items:center;justify-content:center;gap:4px}
.burger span{display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .18s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{background:var(--ink);color:var(--lime);border-color:var(--lime);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(15,17,20,.28)}
.btn-ghost:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-1px)}
.btn-dark{background:var(--ink);color:var(--lime);border-color:var(--ink)}
.btn-dark:hover{background:var(--lime);color:var(--ink);border-color:var(--lime);transform:translateY(-1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--ink);border-bottom:1px solid var(--lime);padding-bottom:2px}
.link-arrow i{transition:transform .18s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:none}
.drawer.is-open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(15,17,20,.55);backdrop-filter:blur(2px)}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);background:var(--paper);display:flex;flex-direction:column;box-shadow:-12px 0 40px rgba(15,17,20,.18)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-head .logo-text b{font-size:14px}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;flex:1;overflow-y:auto}
.drawer-link{display:flex;align-items:center;justify-content:space-between;min-height:56px;padding:0 20px;font-size:16px;font-weight:500;border-bottom:1px solid var(--line);transition:background .18s var(--ease),color .18s var(--ease)}
.drawer-link::after{content:"\f105";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--muted);font-size:14px}
.drawer-link:hover,.drawer-link.is-active{background:var(--white);color:var(--ink)}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}
.drawer-domain{margin-top:12px;font-size:12px;color:var(--muted);letter-spacing:.06em;text-align:center}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);padding:26px 0 0}
.crumbs a{color:var(--muted);transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--ink)}
.crumbs .sep{color:#C9C8C3}
.crumb-now{color:#31353A;max-width:min(52vw,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-head{padding:24px 0 0}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-sm);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-violet{background:rgba(108,92,231,.1);color:#4B3FBF;border:1px solid rgba(108,92,231,.22)}
.badge-lime{background:rgba(199,245,60,.28);color:#3D4A0C;border:1px solid rgba(199,245,60,.7)}
.article-title{
  margin:18px 0 0;max-width:760px;
  font-size:clamp(1.75rem,4vw,2.65rem);font-weight:800;letter-spacing:-.02em;line-height:1.18;color:var(--ink);
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:20px;padding-bottom:22px;border-bottom:1px solid var(--line);
  font-size:13px;letter-spacing:.02em;color:var(--muted);
}
.article-meta .dot{color:#C9C8C3}
.article-cover{margin:32px 0 0;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:var(--ink-2)}
.article-cover img{width:100%;aspect-ratio:2/1;object-fit:cover;transition:transform .32s var(--ease)}
.article-cover:hover img{transform:scale(1.02)}
.cover-cap{margin-top:10px;font-size:13px;color:var(--muted)}

/* ---------- 正文阅读区 ---------- */
.article-main{padding:44px 0 8px}
.article-body{max-width:780px;font-size:17px;line-height:1.9;color:#23262A}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  position:relative;margin:48px 0 16px;padding-left:14px;
  font-size:clamp(1.375rem,2.4vw,1.75rem);font-weight:800;letter-spacing:-.02em;line-height:1.35;color:var(--ink);
}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:2px;background:var(--lime);border-radius:2px}
.article-body h3{margin:32px 0 12px;font-size:1.125rem;font-weight:700;color:var(--ink)}
.article-body h4{margin:24px 0 10px;font-size:1rem;font-weight:700;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:0;list-style:none}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.5em}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--lime)}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:.5em;counter-increment:li}
.article-body ol li::before{content:counter(li,decimal-leading-zero);position:absolute;left:0;top:.12em;font-size:13px;font-weight:800;color:var(--lime);letter-spacing:.02em}
.article-body blockquote{
  margin:0 0 1.25em;padding:20px 22px;background:var(--paper);
  border-left:4px solid var(--lime);border-radius:0 var(--r-md) var(--r-md) 0;color:#3A3E42;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:26px auto}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:background .18s var(--ease)}
.article-body a:hover{background:var(--lime);text-decoration:none}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 1.5em;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.article-body th{background:var(--paper);font-weight:600;color:var(--ink)}
.article-body pre{background:var(--ink);color:#E8EAEC;padding:18px 20px;border-radius:var(--r-md);overflow-x:auto;font-size:14px;line-height:1.7;margin:0 0 1.5em}
.article-body code{background:rgba(15,17,20,.06);padding:2px 6px;border-radius:4px;font-size:.92em}
.article-body pre code{background:none;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
@media (max-width:640px){
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}

.article-empty{
  max-width:780px;padding:48px 28px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--white);
}
.article-empty p{margin-bottom:18px;font-size:17px;font-weight:600;color:var(--ink)}

/* ---------- 标签与分享 ---------- */
.article-foot{max-width:780px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-sm);background:var(--white);border:1px solid var(--line);font-size:12px;color:#3A3E42;transition:border-color .18s var(--ease),color .18s var(--ease)}
.tag:hover{border-color:var(--lime);color:var(--ink)}
.share-row{display:flex;align-items:center;gap:10px}
.share-row .label{font-size:13px;color:var(--muted)}
.share-btn{width:36px;height:36px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--white);display:inline-flex;align-items:center;justify-content:center;color:#31353A;font-size:14px;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease)}
.share-btn:hover{background:var(--lime);color:var(--ink);border-color:var(--lime);transform:translateY(-1px)}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
@media (min-width:1024px){.section{padding:104px 0}}
.section-dark{background:var(--ink);color:#E8EAEC}
.section-lime{background:var(--lime);color:var(--ink)}
.section-white{background:var(--white)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.sec-title{font-size:clamp(1.625rem,3.2vw,2.5rem);font-weight:800;letter-spacing:-.02em;line-height:1.2}
.sec-sub{margin-top:12px;font-size:15px;color:var(--muted);max-width:620px}
.section-dark .sec-title{color:#fff}
.section-dark .sec-sub{color:var(--muted-dark)}

/* ---------- 进度组件 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:0 0 40px;list-style:none;padding:0}
.step{position:relative;padding:0 16px 0 0}
.step-top{display:flex;align-items:center;gap:12px}
.step-node{width:12px;height:12px;border-radius:50%;background:#3A3E42;border:2px solid #3A3E42;flex:none;position:relative;z-index:2}
.step-bar{position:absolute;left:12px;right:-4px;top:5px;height:2px;background:#2A2E33;z-index:1}
.step:last-child .step-bar{display:none}
.step.is-done .step-node{background:var(--lime);border-color:var(--lime)}
.step.is-done .step-bar{background:var(--lime)}
.step.is-now .step-node{background:transparent;border:2px solid var(--lime);box-shadow:0 0 0 0 rgba(199,245,60,.6);animation:pulse 1.6s infinite}
.step.is-now .step-bar{background:linear-gradient(90deg,var(--lime) 0%,#2A2E33 70%)}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(199,245,60,.55)}
  70%{box-shadow:0 0 0 10px rgba(199,245,60,0)}
  100%{box-shadow:0 0 0 0 rgba(199,245,60,0)}
}
.step-name{margin-top:16px;font-size:15px;font-weight:700;color:#fff}
.step-desc{margin-top:6px;font-size:13px;line-height:1.7;color:var(--muted-dark)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding-top:32px;border-top:1px solid var(--line-dark)}
.stat-num{font-size:clamp(1.75rem,4vw,2.75rem);font-weight:900;letter-spacing:-.03em;color:var(--lime);font-variant-numeric:tabular-nums;line-height:1}
.stat-txt{margin-top:10px;font-size:13px;color:var(--muted-dark)}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{
  display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:var(--lime);box-shadow:0 6px 0 -2px rgba(15,17,20,.08)}
.card-media{position:relative;overflow:hidden;background:var(--ink-2)}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .32s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:1.125rem;font-weight:700;line-height:1.45;color:var(--ink)}
.card:hover .card-title{background:linear-gradient(transparent 62%,rgba(199,245,60,.65) 62%)}
.card-text{font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.card-meta i{transition:transform .18s var(--ease)}
.card:hover .card-meta i{transform:translateX(4px);color:var(--ink)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line);padding:4px 0}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .faq-icon{flex:none;width:22px;height:22px;position:relative;transition:transform .24s var(--ease)}
.faq-item summary .faq-icon::before,
.faq-item summary .faq-icon::after{content:"";position:absolute;background:var(--ink);border-radius:2px;transition:background .18s var(--ease)}
.faq-item summary .faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-item summary .faq-icon::after{top:0;bottom:0;left:10px;width:2px}
.faq-item[open] summary .faq-icon{transform:rotate(45deg)}
.faq-item[open] summary .faq-icon::before,
.faq-item[open] summary .faq-icon::after{background:var(--lime)}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:760px}

/* ---------- CTA ---------- */
.cta-band{padding:64px 0}
@media (min-width:1024px){.cta-band{padding:88px 0}}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-title{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:800;letter-spacing:-.02em;line-height:1.2;color:var(--ink)}
.cta-text{margin-top:10px;font-size:15px;color:#3B4310;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.cta-band .btn-dark:hover{background:#fff;color:var(--ink);border-color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--muted-dark);padding-top:56px}
.footer-top{border-top:1px solid var(--line-dark);position:relative;padding-top:56px}
.footer-top::before{content:"";position:absolute;top:-1px;left:0;width:64px;height:2px;background:var(--lime)}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px}}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.site-footer .logo-mark{background:var(--lime)}
.site-footer .logo-mark::after{background:var(--ink);box-shadow:0 6px 0 var(--ink),0 12px 0 rgba(15,17,20,.35)}
.site-footer .logo-text b{color:#fff}
.site-footer .logo-text span{color:var(--muted-dark)}
.footer-brand p{font-size:14px;line-height:1.8;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--muted-dark);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--lime);text-decoration:underline;text-underline-offset:3px}
.footer-col .plain{font-size:14px;color:var(--muted-dark)}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom .dot{margin:0 8px;color:#3A3E42}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .card:hover,.btn:hover,.icon-btn:hover,.share-btn:hover{transform:none!important}
  .card:hover .card-media img,.article-cover:hover img{transform:none!important}
}
@media (max-width:900px){
  .main-nav{display:none}
  .burger{display:inline-flex}
}
@media (max-width:640px){
  .header-actions .btn{display:none}
  .steps{grid-template-columns:1fr;gap:24px}
  .step{padding-right:0}
  .step-bar{display:none}
  .stats{grid-template-columns:1fr;gap:20px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .article-foot{flex-direction:column;align-items:flex-start}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category1 */
:root{
    --ink:#0F1114;
    --ink-2:#1A1D21;
    --paper:#F7F6F2;
    --white:#FFFFFF;
    --lime:#C7F53C;
    --violet:#6C5CE7;
    --line:#E4E3DE;
    --line-dark:rgba(255,255,255,.14);
    --muted:#6B7075;
    --muted-dark:#A7ADB2;
    --danger:#D93A2B;
    --r-sm:8px;
    --r-md:12px;
    --r-lg:18px;
    --r-pill:999px;
    --ease:cubic-bezier(.22,.68,.28,1);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:hidden}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    font-weight:400;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
  }
  body.is-locked{overflow:hidden}
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid var(--lime);outline-offset:2px;box-shadow:0 0 0 4px rgba(199,245,60,.28)}
  .tabular{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 32px}}
  @media (min-width:1280px){.container{max-width:1280px;padding:0 48px}}

  /* ---------- 顶部信息条 ---------- */
  .top-bar{background:var(--ink);color:var(--muted-dark);font-size:12.5px;letter-spacing:.02em}
  .top-bar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px}
  .top-bar-left{display:flex;align-items:center;gap:14px;min-width:0}
  .top-domain{font-weight:600;color:#fff;white-space:nowrap;font-variant-numeric:tabular-nums}
  .top-hint{color:var(--muted-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .top-hint::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--lime);margin-right:8px;vertical-align:middle}
  .top-bar-right{display:flex;align-items:center;gap:12px;flex:none}
  .top-link{color:var(--lime);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;transition:opacity 180ms var(--ease)}
  .top-link:hover{text-decoration:underline;opacity:.85}
  .top-close{width:22px;height:22px;border-radius:50%;border:1px solid var(--line-dark);color:var(--muted-dark);display:grid;place-items:center;font-size:14px;line-height:1;transition:all 180ms var(--ease)}
  .top-close:hover{border-color:var(--lime);color:var(--lime)}
  @media (max-width:767px){.top-hint{display:none}}

  /* ---------- 主导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,246,242,.88);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:background 240ms var(--ease),border-color 240ms var(--ease);
  }
  .site-header.is-scrolled{background:rgba(247,246,242,.97);border-bottom-color:var(--line)}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:18px}

  .logo{display:inline-flex;align-items:center;gap:10px;flex:none}
  .logo-mark{width:26px;height:26px;border-radius:7px;background:var(--ink);position:relative;flex:none}
  .logo-mark::after{content:"";position:absolute;left:7px;top:7px;width:12px;height:12px;background:var(--lime);border-radius:2px}
  .logo-text{display:inline-flex;align-items:baseline;gap:5px;font-size:17px;letter-spacing:-.02em;line-height:1}
  .logo-text b{font-weight:900}
  .logo-text span{font-weight:500;font-size:15px;color:var(--muted);letter-spacing:0}

  .main-nav{display:none;align-items:center;gap:4px;flex:1;justify-content:center}
  @media (min-width:1024px){.main-nav{display:flex}}
  .nav-link{position:relative;padding:9px 14px;font-size:15px;font-weight:500;color:#3A3F44;border-radius:var(--r-sm);transition:color 180ms var(--ease);white-space:nowrap}
  .nav-link::after{content:"";position:absolute;left:14px;bottom:2px;width:18px;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform 240ms var(--ease)}
  .nav-link:hover{color:var(--ink)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{color:var(--ink);font-weight:700}
  .nav-link.is-active::after{transform:scaleX(1)}

  .nav-actions{display:flex;align-items:center;gap:10px;flex:none}
  .icon-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--white);display:grid;place-items:center;color:var(--ink);transition:all 200ms var(--ease)}
  .icon-btn:hover{border-color:var(--ink);transform:translateY(-1px)}
  .icon-btn:active{transform:translateY(1px)}
  .hamburger{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--white);display:grid;place-items:center;transition:all 200ms var(--ease)}
  .hamburger:hover{border-color:var(--ink)}
  @media (min-width:1024px){.hamburger{display:none}}

  /* ---------- 按钮 ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);font-weight:700;font-size:15px;padding:14px 28px;border:1px solid transparent;transition:background 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease),transform 240ms var(--ease);white-space:nowrap;cursor:pointer}
  .btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
  .btn-primary:hover{background:var(--ink);color:var(--lime);border-color:var(--lime);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-dark{background:var(--ink);color:var(--lime);border-color:var(--ink)}
  .btn-dark:hover{background:transparent;color:var(--ink);border-color:var(--ink);transform:translateY(-1px)}
  .btn-ghost{background:transparent;color:var(--ink);border-color:rgba(15,17,20,.25)}
  .btn-ghost:hover{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:translateY(-1px)}
  .btn-sm{padding:10px 20px;font-size:14px}
  .btn-lg{padding:16px 34px;font-size:16px}
  .link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:var(--ink);border-bottom:1px solid rgba(15,17,20,.25);padding-bottom:3px;transition:all 200ms var(--ease)}
  .link-arrow svg{transition:transform 240ms var(--ease)}
  .link-arrow:hover{border-bottom-color:var(--lime);box-shadow:inset 0 -10px 0 -4px rgba(199,245,60,.55)}
  .link-arrow:hover svg{transform:translateX(4px)}

  /* ---------- 徽章 ---------- */
  .badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;font-size:12px;font-weight:600;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--white);color:var(--muted);white-space:nowrap;line-height:1}
  .badge-lime{background:rgba(199,245,60,.18);border-color:rgba(199,245,60,.55);color:#4A5A0C}
  .badge-violet{background:rgba(108,92,231,.09);border-color:rgba(108,92,231,.3);color:#4A3FBE}
  .on-dark .badge-lime{background:rgba(199,245,60,.12);border-color:rgba(199,245,60,.45);color:var(--lime)}

  /* ---------- 分类页头 ---------- */
  .cat-hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:48px 0 56px}
  @media (min-width:1024px){.cat-hero{padding:64px 0 76px}}
  .cat-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.3}
  .cat-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(15,17,20,.86) 0%,rgba(15,17,20,.94) 100%)}
  .cat-hero-inner{position:relative;z-index:2;max-width:820px}
  .breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted-dark);letter-spacing:.02em}
  .breadcrumb a{color:var(--muted-dark);transition:color 180ms var(--ease)}
  .breadcrumb a:hover{color:var(--lime);text-decoration:underline}
  .breadcrumb .sep{opacity:.55}
  .breadcrumb .current{color:#fff;font-weight:500}
  .cat-hero .badge{margin-top:22px}
  .cat-hero h1{
    margin-top:16px;
    font-size:clamp(2rem,5vw,3.35rem);
    font-weight:900;
    letter-spacing:-.035em;
    line-height:1.06;
    color:#fff;
    max-width:16em;
  }
  .cat-hero-sub{margin-top:18px;font-size:16px;line-height:1.8;color:var(--muted-dark);max-width:640px}
  .cat-hero-line{margin-top:26px;width:72px;height:2px;background:var(--lime)}

  /* ---------- 板块骨架 ---------- */
  .section{padding:56px 0}
  @media (min-width:1024px){.section{padding:96px 0}}
  .section-white{background:var(--white)}
  .section-dark{background:var(--ink);color:#fff}
  .section-paper{background:var(--paper)}
  .eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.08em}
  .eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);flex:none}
  .section-dark .eyebrow{color:var(--muted-dark)}
  .section-title{margin-top:14px;font-size:clamp(1.625rem,3.2vw,2.5rem);font-weight:800;letter-spacing:-.02em;line-height:1.16}
  .section-desc{margin-top:16px;font-size:15.5px;line-height:1.85;color:var(--muted);max-width:660px}
  .section-dark .section-desc{color:var(--muted-dark)}
  .section-head{margin-bottom:40px}
  @media (min-width:1024px){.section-head{margin-bottom:56px}}

  /* ---------- 要点网格（2×2 交错） ---------- */
  .point-grid{display:grid;gap:22px;grid-template-columns:1fr}
  @media (min-width:768px){
    .point-grid{grid-template-columns:repeat(2,1fr);gap:28px}
    .point-grid > :nth-child(even){margin-top:44px}
  }
  .point-card{
    background:var(--white);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:26px 24px;
    transition:transform 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
  }
  .point-card:hover{transform:translateY(-3px);border-color:var(--lime);box-shadow:0 6px 0 -2px rgba(15,17,20,.08)}
  .point-num{font-size:2.5rem;font-weight:900;line-height:1;opacity:.18;font-variant-numeric:tabular-nums;letter-spacing:-.04em}
  .point-card h3{margin-top:14px;font-size:1.125rem;font-weight:700;letter-spacing:-.01em}
  .point-card p{margin-top:10px;font-size:15px;line-height:1.82;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

  /* ---------- 图文说明带 ---------- */
  .feature-split{display:grid;gap:32px;grid-template-columns:1fr;align-items:center}
  @media (min-width:1024px){.feature-split{grid-template-columns:0.92fr 1.08fr;gap:64px}}
  .feature-media{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:var(--ink-2)}
  .feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms var(--ease)}
  .feature-media:hover img{transform:scale(1.04)}
  .dot-list{margin-top:26px;display:grid;gap:14px}
  .dot-list li{display:flex;gap:12px;font-size:15.5px;line-height:1.8;color:#33383D}
  .dot-list li::before{content:"";flex:none;width:8px;height:8px;margin-top:11px;background:var(--lime);border-radius:2px}

  /* ---------- 深色行列表 ---------- */
  .entry-list{border-top:1px solid var(--line-dark)}
  .entry-row{
    display:grid;
    grid-template-columns:1fr;
    gap:8px;
    padding:22px 16px;
    border-bottom:1px solid var(--line-dark);
    transition:background 240ms var(--ease);
  }
  @media (min-width:768px){
    .entry-row{grid-template-columns:160px 1fr auto;align-items:center;gap:28px;padding:26px 20px}
  }
  .entry-row:hover{background:var(--ink-2)}
  .entry-name{font-size:17px;font-weight:700;letter-spacing:-.01em;transition:color 200ms var(--ease)}
  .entry-row:hover .entry-name{color:var(--lime)}
  .entry-desc{font-size:14.5px;line-height:1.78;color:var(--muted-dark)}
  .entry-row .badge{justify-self:start}

  /* ---------- 流程步骤 ---------- */
  .step-track{position:relative;display:grid;gap:30px;grid-template-columns:1fr;margin-top:8px}
  @media (min-width:768px){
    .step-track{grid-template-columns:repeat(4,1fr);gap:0}
    .step-track::before{content:"";position:absolute;top:8px;left:0;right:0;height:2px;background:var(--line)}
    .step-track::after{content:"";position:absolute;top:8px;left:0;width:58%;height:2px;background:var(--lime)}
  }
  .step{padding-right:20px}
  .step-node{width:18px;height:18px;border-radius:50%;border:2px solid var(--line);background:var(--white);position:relative;z-index:1;margin-bottom:20px}
  .step.is-done .step-node{background:var(--lime);border-color:var(--lime)}
  .step.is-current .step-node{border-color:var(--lime);background:var(--white);animation:stepPulse 1.8s infinite}
  .step h3{font-size:1rem;font-weight:700;letter-spacing:-.01em}
  .step p{margin-top:8px;font-size:14px;line-height:1.78;color:var(--muted)}
  .step-idx{display:block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--muted);margin-bottom:6px;font-variant-numeric:tabular-nums}
  @keyframes stepPulse{
    0%{box-shadow:0 0 0 0 rgba(199,245,60,.5)}
    70%{box-shadow:0 0 0 12px rgba(199,245,60,0)}
    100%{box-shadow:0 0 0 0 rgba(199,245,60,0)}
  }
  .stat-bar{display:grid;gap:22px;grid-template-columns:repeat(2,1fr);margin-top:52px;padding-top:30px;border-top:1px solid var(--line)}
  @media (min-width:768px){.stat-bar{grid-template-columns:repeat(4,1fr)}}
  .stat-bar b{display:block;font-size:clamp(1.75rem,4vw,2.75rem);font-weight:900;line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
  .stat-bar span{display:block;margin-top:10px;font-size:13px;color:var(--muted);letter-spacing:.02em}

  /* ---------- 双栏对比清单 ---------- */
  .compare-grid{display:grid;gap:24px;grid-template-columns:1fr}
  @media (min-width:1024px){.compare-grid{grid-template-columns:repeat(2,1fr);gap:32px}}
  .compare-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease),transform 240ms var(--ease)}
  .compare-panel:hover{border-color:var(--lime);transform:translateY(-3px);box-shadow:0 6px 0 -2px rgba(15,17,20,.08)}
  .compare-panel h3{font-size:1.125rem;font-weight:700;letter-spacing:-.01em}
  .compare-panel .panel-tag{margin-top:14px;margin-bottom:20px}
  .check-list{display:grid;gap:14px}
  .check-item{display:flex;gap:12px;font-size:15px;line-height:1.78;color:#33383D}
  .check-mark{flex:none;width:20px;height:20px;margin-top:5px;border-radius:6px;background:var(--lime);display:grid;place-items:center;font-size:12px;font-weight:900;color:var(--ink);line-height:1}

  /* ---------- FAQ ---------- */
  .faq{max-width:860px}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 0;text-align:left;font-size:17px;font-weight:600;letter-spacing:-.01em;color:var(--ink);transition:color 180ms var(--ease)}
  .faq-q:hover{color:#000}
  .faq-icon{width:26px;height:26px;flex:none;border-radius:50%;border:1px solid var(--line);background:var(--white);display:grid;place-items:center;font-size:15px;font-weight:500;line-height:1;transition:transform 240ms var(--ease),background 240ms var(--ease),border-color 240ms var(--ease)}
  .faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--lime);border-color:var(--lime);color:var(--ink)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 240ms var(--ease)}
  .faq-a-inner{padding:2px 0 24px;font-size:15px;line-height:1.85;color:var(--muted);max-width:760px}

  /* ---------- CTA 通栏 ---------- */
  .cta-band{background:var(--lime);color:var(--ink)}
  .cta-inner{display:flex;flex-direction:column;gap:26px;padding:56px 0}
  @media (min-width:1024px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:56px;padding:80px 0}}
  .cta-inner h2{font-size:clamp(1.625rem,3.2vw,2.35rem);font-weight:800;letter-spacing:-.025em;line-height:1.16;max-width:18em}
  .cta-inner p{margin-top:14px;font-size:15.5px;line-height:1.8;color:#3C460F;max-width:520px}
  .cta-actions{display:flex;flex-direction:column;gap:14px;flex:none}
  @media (min-width:640px){.cta-actions{flex-direction:row;align-items:center;gap:22px}}
  .cta-actions .link-arrow{border-bottom-color:rgba(15,17,20,.35)}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:var(--muted-dark)}
  .footer-top{position:relative;padding:56px 0 44px}
  @media (min-width:1024px){.footer-top{padding:72px 0 56px}}
  .footer-top::before{content:"";position:absolute;top:0;left:20px;width:56px;height:2px;background:var(--lime)}
  @media (min-width:768px){.footer-top::before{left:32px}}
  @media (min-width:1280px){.footer-top::before{left:48px}}
  .footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px}}
  .footer-brand .logo-text b{color:#fff}
  .footer-brand .logo-text span{color:var(--muted-dark)}
  .footer-brand .logo-mark{background:#fff}
  .footer-brand .logo-mark::after{background:var(--ink)}
  .footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;max-width:340px;color:var(--muted-dark)}
  .footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
  .footer-col li{margin-bottom:11px}
  .footer-col a,.footer-col .plain{font-size:13.5px;color:var(--muted-dark);transition:color 180ms var(--ease)}
  .footer-col a:hover{color:var(--lime);text-decoration:underline}
  .footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding:22px 0;border-top:1px solid var(--line-dark);font-size:13px;color:var(--muted-dark)}
  .footer-bottom .dot{margin:0 8px;opacity:.6}

  /* ---------- 移动端抽屉 ---------- */
  .mobile-drawer{
    position:fixed;inset:0;z-index:90;
    background:var(--ink);
    display:flex;flex-direction:column;
    padding:24px 20px calc(24px + env(safe-area-inset-bottom));
    transform:translateY(-100%);
    transition:transform 320ms var(--ease);
    visibility:hidden;
  }
  .mobile-drawer.is-open{transform:translateY(0);visibility:visible}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line-dark)}
  .drawer-head .logo-text b{color:#fff}
  .drawer-head .logo-text span{color:var(--muted-dark)}
  .drawer-head .logo-mark{background:#fff}
  .drawer-head .logo-mark::after{background:var(--ink)}
  .drawer-close{width:38px;height:38px;border-radius:50%;border:1px solid var(--line-dark);color:#fff;display:grid;place-items:center;font-size:18px;line-height:1;transition:all 200ms var(--ease)}
  .drawer-close:hover{border-color:var(--lime);color:var(--lime)}
  .drawer-nav{margin-top:12px;flex:1}
  .drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:56px;font-size:16px;color:#fff;border-bottom:1px solid var(--line-dark);transition:color 200ms var(--ease)}
  .drawer-nav a:hover,.drawer-nav a.is-active{color:var(--lime)}
  .drawer-foot{padding-top:20px;border-top:1px solid var(--line-dark);display:grid;gap:16px}
  .drawer-foot .btn{width:100%}
  .drawer-foot span{font-size:12.5px;color:var(--muted-dark)}

  @media (prefers-reduced-motion: reduce){
    *,*::before,*::after{
      animation-duration:.001ms !important;
      animation-iteration-count:1 !important;
      transition-duration:.001ms !important;
      scroll-behavior:auto !important;
    }
    .point-card:hover,.compare-panel:hover,.feature-media:hover img,.btn:hover{transform:none !important}
  }

/* roulang page: category2 */
:root{
  --ink:#0F1114;
  --ink-2:#1A1D21;
  --paper:#F7F6F2;
  --white:#FFFFFF;
  --lime:#C7F53C;
  --violet:#6C5CE7;
  --line:#E4E3DE;
  --line-dark:rgba(255,255,255,.14);
  --muted:#6B7075;
  --muted-dark:#A7ADB2;
  --danger:#D93A2B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --ease:cubic-bezier(.22,.68,.28,1);
  --shadow-hover:0 6px 0 -2px rgba(15,17,20,.08);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em}
p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;box-shadow:0 0 0 4px rgba(199,245,60,.28)}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{max-width:1280px;padding:0 48px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);color:var(--muted-dark);font-size:12.5px;letter-spacing:.02em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-domain{color:#fff;font-weight:600}
.topbar-tip{position:relative;padding-left:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-tip::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:12px;background:var(--line-dark)}
.topbar-right{display:flex;align-items:center;gap:6px;flex:none}
.topbar-link{color:var(--lime);font-weight:600}
.topbar-link:hover{text-decoration:underline}
.topbar-close{width:24px;height:24px;line-height:1;border-radius:var(--r-sm);color:var(--muted-dark);font-size:16px;display:inline-flex;align-items:center;justify-content:center}
.topbar-close:hover{color:var(--lime);background:rgba(255,255,255,.08)}
@media (max-width:767px){.topbar-tip{display:none}}

/* ---------- 导航 ---------- */
.nav-wrap{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .24s var(--ease),background-color .24s var(--ease);
}
.site-header.is-scrolled .nav-wrap{border-bottom-color:var(--line);background:rgba(247,246,242,.96)}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{position:relative;width:22px;height:22px;border-radius:6px;background:var(--ink);flex:none}
.logo-mark::after{content:"";position:absolute;inset:6px;background:var(--lime);border-radius:2px;transform:rotate(45deg)}
.logo-text{display:flex;align-items:baseline;gap:5px;font-size:17px}
.logo-text b{font-weight:900;letter-spacing:-.02em}
.logo-text span{font-size:13.5px;font-weight:500;color:var(--muted)}
.main-nav{display:none;align-items:center;gap:2px;margin:0 auto}
.nav-link{position:relative;padding:9px 13px;font-size:15px;font-weight:500;color:#3A4045;border-radius:var(--r-sm)}
.nav-link:hover{color:var(--ink)}
.nav-link::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1);right:auto;width:20px}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;display:none;align-items:center;justify-content:center;color:#3A4045}
.icon-btn:hover{border-color:var(--lime);color:var(--ink);transform:translateY(-1px)}
.hamburger{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.hamburger span{display:block;width:17px;height:2px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (min-width:1024px){
  .main-nav{display:flex}
  .icon-btn{display:inline-flex}
  .hamburger{display:none}
}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--paper);
  display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .32s var(--ease);
  visibility:hidden;
}
.drawer.is-open{transform:none;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-nav{flex:1;overflow-y:auto;padding:8px 20px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:56px;font-size:16px;font-weight:500;border-bottom:1px solid var(--line)}
.drawer-nav a.is-active{color:var(--ink);font-weight:700}
.drawer-nav a.is-active::after{content:"";width:20px;height:2px;background:var(--lime)}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--line);background:#fff}
.drawer-foot .domain{display:block;margin-top:10px;font-size:12.5px;color:var(--muted)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:background-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:var(--ink);color:var(--lime);box-shadow:inset 0 0 0 1px var(--lime);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-dark{background:var(--ink);color:var(--lime)}
.btn-dark:hover{background:transparent;color:var(--ink);border-color:var(--ink);transform:translateY(-1px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--ink)}
.btn-text:hover{color:var(--ink);text-decoration:underline}
.btn-text .arrow{transition:transform .24s var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-sm);font-size:12px;font-weight:600;letter-spacing:.02em;border:1px solid transparent}
.badge-violet{background:rgba(108,92,231,.10);color:#4E40C4;border-color:rgba(108,92,231,.24)}
.badge-lime{background:rgba(199,245,60,.28);color:#3C4A0C;border-color:rgba(199,245,60,.65)}
.badge-line{background:#fff;color:var(--muted);border-color:var(--line)}

/* ---------- 页面头部 ---------- */
.page-head{background:var(--paper);padding:44px 0 36px;border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.breadcrumb a:hover{color:var(--ink);text-decoration:underline}
.breadcrumb .sep{color:var(--line);opacity:1}
.breadcrumb .current{color:#3A4045}
.page-head h1{
  font-size:clamp(2rem,5vw,3.25rem);
  font-weight:900;letter-spacing:-.035em;line-height:1.08;
  max-width:900px;margin:16px 0 0;
}
.page-lede{margin-top:16px;max-width:720px;font-size:16.5px;color:#3A4045;line-height:1.8}
.head-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);letter-spacing:.02em}
.head-meta i{color:var(--line);font-style:normal}

/* ---------- 板块 ---------- */
.section{padding:56px 0}
.section-paper{background:var(--paper)}
.section-white{background:#fff}
@media (min-width:768px){.section{padding:80px 0}}
@media (min-width:1024px){.section{padding:96px 0}}

.layout-grid{display:grid;grid-template-columns:1fr;gap:44px}
@media (min-width:1024px){
  .layout-grid{grid-template-columns:minmax(0,66fr) minmax(0,34fr);gap:56px;align-items:start}
}

/* ---------- 正文排版 ---------- */
.content-col{min-width:0}
.content-col h2{
  position:relative;padding-left:16px;margin:0 0 18px;
  font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;line-height:1.25;
  scroll-margin-top:96px;
}
.content-col h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.22em;width:2px;background:var(--lime);border-radius:2px}
.content-col h2 + p{margin-top:0}
.content-col h3{font-size:1.125rem;font-weight:700;margin:28px 0 10px;letter-spacing:-.01em}
.content-col p{margin:0 0 1.15em;color:#2F3438;line-height:1.9}
.block-gap{margin-top:56px;padding-top:56px;border-top:1px solid var(--line)}

.tick-list{list-style:none;display:grid;gap:12px;margin:0 0 26px}
.tick-list li{position:relative;padding-left:26px;color:#2F3438;line-height:1.8}
.tick-list li::before{content:"";position:absolute;left:0;top:.68em;width:10px;height:10px;border-radius:2px;background:var(--lime)}

.note-block{
  background:var(--paper);border-radius:var(--r-md);
  border-left:4px solid var(--lime);padding:20px 22px;margin:26px 0;
}
.note-block p{margin:0;font-size:15.5px;color:#3A4045}

/* ---------- 图片块 ---------- */
.figure{margin:28px 0;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .32s var(--ease)}
.figure:hover img{transform:scale(1.04)}
.figure figcaption{padding:12px 16px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);background:#fff}

/* ---------- 流程进度 ---------- */
.flow{list-style:none;display:grid;gap:26px;margin:30px 0 34px}
.flow-step{position:relative;padding-left:34px}
.flow-step::before{content:"";position:absolute;left:5px;top:8px;bottom:-26px;width:2px;background:var(--line)}
.flow-step:last-child::before{display:none}
.flow-step::after{content:"";position:absolute;left:0;top:5px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--line);box-sizing:border-box}
.flow-step h3{margin:0 0 6px;font-size:1.0625rem;font-weight:700}
.flow-step p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.75}
.flow-step.is-done::before{background:var(--lime)}
.flow-step.is-done::after{background:var(--lime);border-color:var(--lime)}
.flow-step.is-current::after{background:#fff;border-color:var(--lime);box-shadow:0 0 0 5px rgba(199,245,60,.28);animation:pulse 1.6s var(--ease) infinite}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(199,245,60,.20)}
  50%{box-shadow:0 0 0 8px rgba(199,245,60,.06)}
}
@media (min-width:768px){
  .flow{grid-template-columns:repeat(4,1fr);gap:0}
  .flow-step{padding:40px 22px 0 0}
  .flow-step::before{left:0;right:0;top:11px;bottom:auto;width:auto;height:2px}
  .flow-step:last-child::before{right:0}
  .flow-step::after{left:0;top:6px}
}

.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:8px;padding-top:24px;border-top:1px solid var(--line)}
@media (min-width:768px){.stat-row{grid-template-columns:repeat(4,1fr)}}
.stat-row b{display:block;font-size:clamp(1.75rem,4vw,2.5rem);font-weight:900;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.stat-row span{display:block;margin-top:6px;font-size:13px;color:var(--muted);letter-spacing:.02em}

/* ---------- 表格 ---------- */
.table-wrap{margin:26px 0;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;min-width:600px;border-collapse:collapse}
th,td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:14.5px;vertical-align:top}
th{background:var(--paper);font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.03em;white-space:nowrap}
td{color:#2F3438;line-height:1.75}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:#FCFCFA}

/* ---------- 小卡网格 ---------- */
.mini-grid{display:grid;grid-template-columns:1fr;gap:16px;margin:26px 0}
@media (min-width:640px){.mini-grid{grid-template-columns:repeat(2,1fr)}}
.mini-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 22px;transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease)}
.mini-card:hover{border-color:var(--lime);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.mini-card .idx{display:block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--violet);margin-bottom:10px;font-variant-numeric:tabular-nums}
.mini-card h3{margin:0 0 8px;font-size:1.0625rem;font-weight:700}
.mini-card p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- 侧栏 ---------- */
.side-col{min-width:0}
.sticky-box{position:sticky;top:96px;display:grid;gap:20px}
.toc{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}
.toc-title{font-size:12.5px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin:0 0 12px}
.toc a{display:block;padding:9px 0 9px 16px;font-size:14.5px;color:#3A4045;border-left:2px solid var(--line);transition:padding-left .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease)}
.toc a:hover{color:var(--ink);padding-left:20px;border-left-color:var(--lime)}
.toc a.is-current{color:var(--ink);font-weight:700;border-left-color:var(--lime);padding-left:20px}

.cta-card{background:var(--ink);color:#fff;border-radius:var(--r-lg);padding:24px}
.cta-card h3{font-size:1.125rem;font-weight:800;line-height:1.4;letter-spacing:-.02em}
.cta-card p{margin:10px 0 18px;font-size:14px;color:var(--muted-dark);line-height:1.8}
.cta-card .btn{width:100%}
.cta-card .sub{margin:14px 0 0;font-size:12.5px;color:var(--muted-dark);text-align:center}

.side-stats{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 22px}
.side-stats h3{font-size:12.5px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin:0 0 14px}
.side-stats ul{list-style:none;display:grid;gap:12px}
.side-stats li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:14px;color:#3A4045}
.side-stats b{font-size:17px;font-weight:900;font-variant-numeric:tabular-nums}

@media (max-width:1023px){
  .sticky-box{position:static}
}

/* ---------- FAQ ---------- */
.faq-head{max-width:760px;margin-bottom:8px}
.faq-head h2{font-size:clamp(1.625rem,3.2vw,2.5rem);font-weight:800;line-height:1.2;letter-spacing:-.02em}
.faq-head p{margin-top:12px;color:var(--muted);font-size:15px}
.faq{max-width:860px;margin-top:24px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;font-weight:400;color:var(--muted);line-height:1;transition:transform .24s var(--ease),color .24s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg);color:var(--lime)}
.faq .faq-a{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:800px}

/* ---------- CTA 通栏 ---------- */
.cta-band{background:var(--lime);color:var(--ink);padding:64px 0}
@media (min-width:768px){.cta-band{padding:88px 0}}
.cta-inner{display:grid;gap:28px;align-items:center}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.5fr 1fr;gap:48px}}
.cta-band h2{font-size:clamp(1.625rem,3.4vw,2.5rem);font-weight:900;letter-spacing:-.03em;line-height:1.15}
.cta-band p{margin-top:14px;font-size:16px;color:#33400B;max-width:640px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:767px){
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--muted-dark);margin-top:0}
.footer-top{position:relative;border-top:1px solid var(--line-dark);padding:64px 0 48px}
.footer-top::before{content:"";position:absolute;top:-1px;left:20px;width:72px;height:1px;background:var(--lime)}
@media (min-width:768px){.footer-top::before{left:32px}}
@media (min-width:1280px){.footer-top::before{left:48px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .logo{margin-bottom:16px}
.site-footer .logo-mark{background:var(--lime)}
.site-footer .logo-mark::after{background:var(--ink)}
.site-footer .logo-text b{color:#fff}
.site-footer .logo-text span{color:var(--muted-dark)}
.footer-brand p{font-size:13.5px;line-height:1.9;color:var(--muted-dark);max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.01em}
.footer-col ul{list-style:none;display:grid;gap:11px}
.footer-col a{font-size:13.5px;color:var(--muted-dark)}
.footer-col a:hover{color:var(--lime);text-decoration:underline}
.footer-col .plain{font-size:13.5px;color:var(--muted-dark)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;
  padding:22px 0 34px;border-top:1px solid var(--line-dark);
  font-size:12.5px;color:var(--muted-dark);letter-spacing:.02em;
}
.footer-bottom .dot{margin:0 8px;color:var(--line-dark)}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .mini-card:hover,.btn:hover,.figure:hover img{transform:none !important}
}